Your Choice JavaScript News

Node News Saturday, March 3 Master process, Cluster module, Twitter & more…

Node News TLDR / Table of Contents

  • Scaling Node.js Applications –
    • Scalability in Node.js is not an afterthought. It’s something that’s baked into the core of the runtime. Node is named Node to emphasize the idea that a Node application should comprise multiple…
    • master process, cluster module, worker process, ,
  • Build a simple Twitter Bot with Node.js in just 38 lines of code
    • This is the first post in a multi-part series. In future posts, I’ll show you how to add more advanced functionality to our bot. For now, we’re going to build a very simple Twitter bot that favorites…
    • twitter, twitter bot, simple twitter bot, Twitter API, Twitter favorite bot
  • Making the Switch from Node.js to Golang Tutorial | Codeship
    • Making the switch from Node.js to Golang was the right decision for Alexandra Grant. Learn about her transition and how it has benefited her team.
    • Node, Octo, Node Octo, troublesome Node service, new Octo service
  • Tips for Creating Node.js REST APIs –
    • In this article, I am going to offer you some tips for writing REST APIs in Nodejs for a production level application. Writing RESTful APIs with Nodejs is one of the most popular use case using the…
    • open-source API documentation, CRUD operations, production level application, RESTful APIs, correct HTTP method
  • Socket.IO
    • bidirectional event-based communication, powerful JavaScript frameworks, depended-upon npm module, ,
  • Nodes cluster module not only provides an out-of-the-box solution to utilizing the full CPU power of a machine, but it also helps with increasing the availability of your Node processes and provides an option to restart the whole application with a zero downtime.
  • Its based on the child process module fork method and it basically allows us to fork the main application process as many times as we have CPU cores.
  • Even small machines usually have multiple cores and even if youre not worried about the load on your Node server, you should enable the cluster module anyway to increase your server availability and fault-tolerance.
  • To test the cluster, run the cluster.js file: – Screenshot captured from my Pluralsight courseAdvancedNode.jsI have 8 cores on my machine so it started 8 processes.
  • The workers will not be exactly rotated in sequence because the cluster module performs some optimizations when picking the next worker, but the load will be somehow distributed among the different worker processes.

Tags: master process, cluster module, worker process, ,

  • Together well build a simple Twitter favorite bot with Node.js in just 38 lines ofcode.Twitter!
  • Check out my Top Three Node.js courses.Twitter NPM: An NPM module that allows to easily interact with the Twitter API.Create an ApplicationFirst things first: The only reason this bot will work is because of the Twitter API.
  • { – name: twitter-bot, – version: 1.0.0, – description: Nodejs Twitter Bot, – main: app.js, – scripts: { – test: echo \Error: no test specified\ exit 1 – }, – repository: { – type: git, – url: }, – author: Brandon Morelli, – license: ISC, – bugs: { – url:…
  • /config.js’); – var T = new Twitter(config);// Set up your search parameters – var params = { – q: ‘#nodejs’, – count: 10, – result_type: ‘recent’, – lang: ‘en’ – }q is the only required parameter and it stores our search query.
  • err){ – // This is where the magic will happen – } else { – console.log(err); – } – })To gain a deep understanding of what is happening here, youll need to read the Twitter API Documentation on GET search/tweets, but Ill try and provide a basic introduction: – With…

Tags: twitter, twitter bot, simple twitter bot, Twitter API, Twitter favorite bot

  • Rather than putting all the onus on our Python web server to request up to 100+ keys at a time from S3, the decision was made to take advantage of Nodes easy async code patterns and great concurrency handling.
  • Most developers have heard about Nodes non-blocking I/O model; its great because it means all requests are handled asynchronously without blocking execution, or incurring any overhead (like with threads and processes) and as the developer you can be blissfully unaware whats happening in the backend.
  • We certainly didnt want to continue bouncing Octo every other week and we were both very interested in a promising case study that had cropped up on the internet: Handling 1 Million Requests per Minute with Go – – If the title wasnt tantalizing enough, the topic was on creating…
  • Our average response time from the service was almost cut in half, our timeouts (in the scenario that S3 was slow to respond) were happening on time, and our traffic spikes had minimal effects on the service.
  • Alongside Octo, we now have 3 other Golang services in production which power our realtime message system and serve up important metadata for our content.

Tags: Node, Octo, Node Octo, troublesome Node service, new Octo service

  • Writing RESTful APIs with Nodejs is one of the most popular use case using the JavaScript server side platform.
  • To develop an API that consist of CRUD operations, you must consider using correct HTTP method with the suitable endpoint: – POST /record for creating a new recordPUT or PATCH /record/:id for updating an existing recordGET /record/:id getting a single recordGET /record getting a list of all recordsDELETE /record/:id deleting…
  • 2xx if everything works fine3xx if record was moved4xx request fails due to client error5xx request fails due to server error (or API)You can refer to either of these links for a detailed error code and message along with it.
  • If using Express, most commonly framework used with Nodejs to creat APIs, consider writing your code in this format: – Consider Creating an API DocumentationWorking as a team or even if individaul and having a documented API, in the end will benefit all.
  • Following open-source API documentation projects can help in this case: – Avail options for building APIs inNodejsThere are quite a number of frameworks that you can choose from to build your next RESTful API with Nodejs.

Tags: open-source API documentation, CRUD operations, production level application, RESTful APIs, correct HTTP method

    Tags: bidirectional event-based communication, powerful JavaScript frameworks, depended-upon npm module, ,

    Top Node Courses

    The Complete Node.js Developer Course (2nd Edition) (60,232 students enrolled)

    By Andrew Mead
    • Build, test, and launch Node apps
    • Create Express web servers and APIs
    • Store data with Mongoose and MongoDB
    • Use cutting-edge ES6/ES7 JavaScript
    • Deploy your Node apps to production
    • Create real-time web apps with SocketIO

    Learn more.


    Angular (Angular 2+) & NodeJS - The MEAN Stack Guide (26,806 students enrolled)

    By Maximilian Schwarzmüller
    • Build real Angular + NodeJS applications
    • Understand how Angular works and how it interacts with Backends
    • Connect any Angular Frontend with a NodeJS Backend
    • Use MongoDB with Mongoose to interact with Data on the Backend
    • Use ExpressJS as a NodeJS Framework
    • Provide a great user experience by using Optimistic Updating on the Frontend
    • Improve any Angular (+ NodeJS) application by adding Error Handling

    Learn more.